Environment Discussion on Paris Motor Show.

Thirteen leaders of the world's largest car companies discussed the global environment and traffic safety.

Thirteen leaders of the world's largest car companies have come together for the first time in history to discuss the global environment and traffic safety.

Following the high-powered gathering ahead of the Paris Motor Show, which opens for the public on Saturday, the powerful executives issued a statement calling for global standards on car safety and environmental regulations.

The executives called for more action to develop cleaner fuels and to develop alternatives to petrol and diesel.

And they stressed that although diesel remains truly dirty, it should be possible to reduce the releases of particles from diesel engines by improving their filters.